Water cooler



FIG. 1 is a front and side perspective view of a second preferred embodiment of the the water cooler design of the present invention;

FIG. 2 is a front perspective view of the water cooler shown in FIG. 1;

FIGS. 3 and 4 are top and bottom perspective views, respectively, of the water cooler shown in FIG. 1;

FIG. 5 is a rear perspective view of the water cooler of FIG. 1; and,

FIG. 6 is a right-side perspective view of the water cooler shown in FIG. 1. 

The ornamental design for a water cooler, as shown and described. 